Question

Решите пожалуйста
$200 \times 450 - 50000$
$16000 \div 4 + 47000$
$28000 \div 7000 \times 12000 - 40000$
$18000 - (300 \times 70 - 3000)$
​

Answer 1

200•450-50000=40000
16000:4+47000=510000
28000:7000•12000-40000=8000